Textbook-Integrated Guide to Educational Resources

TIGER

The Chemistry of Paper PreservationHenry A. CarterThis article examines the applications of chemistry to paper preservation. The acid-catalyzed hydrolysis of cellulose accounts for the deterioration of paper in library books and other written records. To combat this threat to our written heritage, new permanent papers have been developed that are relatively chemically stable and undergo a very slow rate of deterioration. Carter, Henry A. J. Chem. Educ.2007, 84, 1937.

A Substitute for “Bromine in Carbon Tetrachloride”Joshua M. Daley and Robert G. LandoltBenzotrifluoride (BTF) is a suitable solvent substitute for carbon tetrachloride in experiments requiring application of bromine (Br2) in free radical or addition reactions with organic substrates. A 1 M solution of Br2 in BTF may be used to distinguish hydrocarbons based on the ease of abstraction of hydrogen atoms in thermally or light-induced free radical substitutions. Efficacy of minimization of solvent use, by aliquot addition to neat samples, has been established.Daley, Joshua M.; Landolt, Robert G. J. Chem. Educ.2005, 82, 120.

The reactive intermediates of organic chemistryStewart, RossThe purpose of this paper is to outline a logical presentation of the more important reactive intermediates the student is likely to encounter in organic chemistry.Stewart, Ross J. Chem. Educ.1961, 38, 308.